To rename a column using Table Designer. In Object Explorer, right-click the table to which you want to rename columns and choose Design. Under Column Name, select the name you want to change and type a new one.On the File menu, click Save table name.o rename a column using Object Explorer. In Object Explorer, connect to an instance of Database Engine. In Object Explorer, right-click the table in which you want to rename columns and choose Rename. Type a new column name.
In this theory Darwin proposes that 'natural selection' is the mechanism by which evolution functions. Natural selection is a change in the allele frequencies of a species which allows that species to better survive in it's environment.
Evolution refers to any genetic change in a population, whereas natural selection specifies one particular way in which such changes are brought about. Natural selection is the most important agent of evolutionary change simply because it results in adaptation of an organism to its environment. Other possible mechanisms of evolution besides natural selection include gene flow, meiotic drive, and genetic drift.